PEX Tubing Technical Specifications
and General Installation Recommendations


Since all PEX tubing used in the US is manufactured to the same ASTM and dimensional (SDR) standards, these specifications are universal. Manufacturing tolerances and other details can be found in manufacturers’ manuals.


Notes:

  1. PEX tubing sizes are denoted by CTS (copper tubing size), not OD (Outside Diameter) or ID (Inside Diameter).
  2. OD of PEX, copper and CPVC pipe with the same size (CTS) is the same. This is why push fittings can be used with all of these pipes.
  3. PEX made to US standards must comply with a SDR-9 (Standard Dimension Ratio), which is the ratio of OD (Outside Diameter) to pipe wall thickness (9:1). Exceptions are nominal sizes 1/2" and below.

Notes:

  1. Maximum working pressure indicates highest anticipated operating pressure.
  2. Pressure testing requirements and procedures should be in compliance with local codes and PEX manufacturer’s instructions.
  3. Air pressure testing is recommended over water for practical reasons and due to difficulties arising from water freezing during winter months.
  4. Since PEX is a flexible pipe, it will expand somewhat (especially PEX-a) during the initial pressurizing of the system, causing a drop in pressure reading. Some manufacturers recommend "conditioning" of the system, or allowing the PEX system to stay pressurized for about 30 minutes prior to taking a reading.
  5. For concrete slabs, pressure is maintained at 30 psi during the pour and is monitored to assure integrity of the system.


Minimum recommended bending radius is 8 times the outside diameter of PEX
(8 x OD). For 1/2" PEX with OD of 5/8", minimum bending radius is 8 x 5/8" = 5".
Over-bending the PEX pipe, deforms its’ round shape, restricts flow and over-stresses the pipe.
Note: minimum bending diameter only refers to the 90-degree and 180-degree (U-shaped) bends. Parallel runs of pipe can be spaced as close as necessary.


Elongation (linear expansion)
Typical elongation is anywhere from 1" to 2.5" for every 100ft of PEX pipe at a 10°F temperature rise.
Since PEX expands and contracts with temperature changes, it should be secured so as to provide sufficient space for expansion to occur.

Connection Systems and Compatibility

All types (A, B, C) of PEX tubing are compatible with Crimp, Clamp or Push-to-connect type connection systems:

  • Crimp system: Crimp Tool + Copper Crimp Rings (per ASTM F1807 standard) + Crimp style PEX Fittings (brass – per F877/F1807 or poly – per F877/F2159 standards).
  • Clamp (Cinch) system: Clamp Tool + Stainless Steel Clamps (per ASTM F2098) + Crimp style PEX Fittings (same as above).
  • Push system: Push-Fit or Push-to-Connect style fittings (no tools or rings required)

Standards, Approvals & Certifications (Everhot PEX)

ASTM F876: Standard Specification for Crosslinked Polyethylene (PEX) Tubing.
ASTM F877: Standard Specification for Crosslinked Polyethylene (PEX) Plastic Hot- and Cold- Water Distribution Systems.
ASTM F2023: Oxidative resistance of PEX to Hot Chlorinated Water per NSF protocol P171 (Non-Barrier PEX Tubing).
CSA B137.5: Crosslinked Polyethylene (PEX) Tubing Systems for Pressure Applications.
NSF/ANSI 14, nsf-rfh: Evaluated for use in Radiant Floor Heating (NSF-rfh) Applications (
Oxygen Barrier PEX tubing).
NSF/ANSI 61-G, NSF/ANSI 372, nsf-pw-g: Complies with NSF/ANSI standard 61-G for Lead-Free Drinking Water System Components (
Non-Barrier PEX Tubing).
UPC listed by IAPMO (International Association of Plumbing and Mechanical Officials).

 

 

 

 

 

 

 

خط تولید  ، خدمات فنی و مهندسی ،کارخانه تولید ،خط تولید لوله پنج لایه pex،خط تولید لوله پکس ،محصولات پلیمری ،صنعت پلیمر ، محصولات لاستیک و پلاستیک ، ماشین آلات تولید ،راه اندازی کارخانه ، نصب و راه اندازی خط تولید ، مشاوره صنعتی ، مشاوره تولیدی ،سرمایه گذاری صنعتی و تولیدی ، طرح توجیهی ، پروژه صنعتی ، سازنده خط تولید ،سازنده ماشین آلات ،اکسترود تولید ،سازنده اکسترودر تولید ،اکستروژن ،سازنده_دستگاه تولید لوله پنج لایه ،پلیمر ،تکنولوژی تولید ،فرآیند تولید ،تجهیزات صنعتی،کارخانه تولید لوله پنج لایه pex

خط توليد پروفيل در و پنجره upvc، خط توليد داکت برق، خط توليد پنل ديوارپوش ، پانل ديواري و سقف کاذب pvc، خط توليد لوله پليکا PVC، خط توليد لوله تک لايه PEX ،خط توليد لوله پنج لايه کامپوزيت آلومينيوم و پکس  PEX AL PEX، خط توليد لوله يک لايه وچند لايه پلي اتيلن و پلي پروپيلن و پکس PP,PE,PEX، دستگاه لمينيت پانل، دستگاه هات استمپ پانل PVc خط UV ، هاي لايت يا براق پانل

,p production line FIVE LAYER PIPE ,PEX FIVE LAYER PIPE ,PIPING_PEX ,TUBE PEX ,PEX piping, ,PEX_AL_PEX ,PEX PIPE ,PEX_TUBE,production line ,PRODUCTION LINE POLYMER ,Trading Company, ,Production plan ,Industrial design ,Production Project ,Industrial project ,Technical Services ,Engineering services ,production technology ,Production Process ,Industrial equipment ,Machinery, ,Machine ,Setup Factory ,Installation production line Industry,Extrude,extrusion ,Industrial, ,Manufacturer production line, Manufacturer machines and machinery, #pex_pipe_production_line,

,Pex pipe machinery, Pex pipe machine,

 

خط توليد لوله پنج لايه و تک لایه آلومینیوم و پکس pex ، ماشین آلات توليد لوله پنج لایه و تک لایه پکس PEX ، دستگاه تولید لوله هاي پنج لايه ، کارخانه تولید لوله پنج لایه PEX ، خط تولید لوله تک لایه PEX , PERT خط-تولید-دستگاه-لوله-پنج-لایه-پکس-آلومینیوم

FIVE LAYER PIPE , ، PIPE PEX-AL-PEX ، pex five layer pipe production line, pex piping production machine  pex pipe، pex tube machinery، PEX tubing، PIPE MANUFACTURE

pex-al-pex-pipe-five-layer-production-line-machinery-machine- piping-tubing-tube-Manufacturer

|PEX-AL-PEX PIPE production machine|pex five layer pipe production line| piping machinery| tube tube|PEX tubing| tubing MANUFACTURE خط توليد لوله پنج لايه و تک لایه کامپوزیت آلومینیوم و پکس pex ، ماشین آلات توليد لوله پنج لایه و تک لایه پکس PEX ، دستگاه تولید لوله هاي پنج لايه ، کارخانه تولید لوله پلي اتيلن PEX ، خط تولید لوله PEX , PERT

 FIVE LAYER PIPE , , PERT ، PIPE PEX-AL-PEX ،pex pipe , pex five layer pipe production line, pex pipe production line  pex، pex piping ، pex pipe mashinery، PEX PIPE MACHINE،PEX AL PEX PIPE